// Copyright (c) 2025, 大连理工大学 (Dalian University of Technology)
//
// Licensed under the Mulan PSL v2.
// You can use this file according to the terms and conditions of the Mulan PSL v2.
// You may obtain a copy of the License at
//
//     http://license.coscl.org.cn/MulanPSL2
//
// THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
// EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. SEE THE MULAN PSL v2
// FOR MORE DETAILS.

#include "DBManager/Repository/HDF5/Input/Design/SEDLINKRepository.h"

#include "DBManager/Repository/HDF5/Base/HDF5RepositoryMacro.h"

HDF5_REG_REPOSITORY (SEDLINKRepository)

using namespace SG::DBManager::HDF5;
using namespace SG::DataStructure;
using namespace SG::DataStructure::FEM;
using namespace SG::DataStructure::Common;

// 构造函数实现
SEDLINKRepository::SEDLINKRepository (HDF5Database& database) : SG::DBManager::HDF5::MainlyRepositoryBase<MainStruct> (database)
{}

void SEDLINKRepository::InitialDatasetInfo ()
{
    RegisterTableInfo<SG::DataStructure::Common::Id> ("/OWN/INDEX/INPUT/DESIGN/SEDLINK", IndexDataset);
    RegisterTableInfo<NasMainStruct> ("/SG/INPUT/DESIGN/SEDLINK/IDENTITY", MainDataset);
    RegisterTableInfo<SubStructINDEP> ("/SG/INPUT/DESIGN/SEDLINK/INDEP", SubDataset_INDEP);
}

void SEDLINKRepository::DumpWriteCahce ()
{
    auto& writeStorage = this->GetMainCache ().m_writeStorage;

    // 1. flag设置为无顺序
    GetMainDatasetInfo ().SetIsSequential (false);

    // 主表数据
    std::vector<NasMainStruct> IDENTITYData{};
    // 附表数据
    std::vector<SubStructINDEP> subDataINDEP;

    // 2. 转换为nastran格式数据
    OwnToNastran (writeStorage, IDENTITYData, subDataINDEP);

    // 3. 写出数据至文件
    WriteData (MainDataset, IDENTITYData);
    WriteData (SubDataset_INDEP, subDataINDEP);

    // 4. 更新Index表
    this->WriteIndexData (this->GetIndexDatasetInfo (), writeStorage);

    // 5. 清空缓存
    writeStorage.clear ();
}

std::vector<SEDLINKRepository::DataType>*  SEDLINKRepository::LoadReadCache (std::size_t loadIndex)
{
    // 1. 读取范围内主表数据
    std::vector<NasMainStruct> IDENTITYData;
    LoadMainMetadata (loadIndex, IDENTITYData);

    if (IDENTITYData.empty ())
    {
        return nullptr;
    }

    // 2. 读取范围内附表数据
    std::vector<SubStructINDEP> subDataINDEP;

    LoadSecondaryMetadata (IDENTITYData, INDEP_POS, INDEP_LEN, SubDataset_INDEP, subDataINDEP);

    // 3. 将数据转换为自己的格式放入缓存
    auto* cacheVector = m_cacheHelper.LookupOrCreateVector<DataType> (GetMainCache ().m_readCacheKey, IDENTITYData.size ());
    NastranToOwn (IDENTITYData, subDataINDEP, *cacheVector);
    return cacheVector;
}

void SEDLINKRepository::SortData ()
{
    // 1. 读取主表数据
    std::vector<NasMainStruct> IDENTITYData;
    GetDataset (MainDataset).read (IDENTITYData);

    if (IDENTITYData.empty ())
    {
        GetMainDatasetInfo ().SetIsSequential (true);
        return;
    }

    // 2. 读取附表数据
    std::vector<SubStructINDEP> subDataINDEP;

    GetDataset (SubDataset_INDEP).read (subDataINDEP);

    // 3. 将所有数据转换
    std::vector<MainStruct> AllData{};
    NastranToOwn (IDENTITYData, subDataINDEP, AllData);

    // 4. 排序
    std::sort (AllData.begin (), AllData.end ());

    // 5. 转换回nastran格式
    OwnToNastran (AllData, IDENTITYData, subDataINDEP, true);

    // 6. 写出主表数据至文件
    GetDataset (MainDataset).write (IDENTITYData);
    // 7. 写出附表数据至文件
    GetDataset (SubDataset_INDEP).write (subDataINDEP);

    // 8. 重写索引
    RewriteIndexData (AllData);

    // 9. 设置为已顺序
    GetMainDatasetInfo ().SetIsSequential (true);
}

std::vector<SEDLINKRepository::MainStruct> SEDLINKRepository::GetAllData ()
{
    Sort ();

    std::vector<MainStruct> result;

    std::vector<NasMainStruct> IDENTITYData;
    GetDataset (MainDataset).read (IDENTITYData);

    if (IDENTITYData.empty ())
    {
        return result;
    }

    std::vector<SubStructINDEP> subDataINDEP;

    GetDataset (SubDataset_INDEP).read (subDataINDEP);

    // 将所有数据转换
    NastranToOwn (IDENTITYData, subDataINDEP, result);

    return result;
}

void SEDLINKRepository::OwnToNastran (std::vector<MainStruct>&          own,
                                      std::vector<NasMainStruct>& _OUT  IDENTITYData,
                                      std::vector<SubStructINDEP>& _OUT subDataINDEP,

                                      bool isSort)
{
    subDataINDEP.clear ();

    IDENTITYData.clear ();
    IDENTITYData.reserve (own.size ());

    // 获取已有数据条数，主要是放在主表的POS字段
    // 如果是重新排序的时候，Pos都是从0 开始的
    size_t countINDEP = isSort ? 0 : this->GetDatasetInfo (SubDataset_INDEP).GetRowCount ();

    // OwnIdent 代表咱们自己的数据结构
    // NasIdent 代表nastran的数据结构
    for (auto& OwnIdent : own)
    {
        // 写入附表
        subDataINDEP.insert (subDataINDEP.end (), OwnIdent.m_INDEPList.begin (), OwnIdent.m_INDEPList.end ());

        const size_t lenINDEP = OwnIdent.m_INDEPList.size ();

        // 写入IDENTITY
        NasMainStruct NasIdent{};

        NasIdent.ID        = OwnIdent.m_id;
        NasIdent.DSEID     = OwnIdent.m_DSEID;
        NasIdent.DDVID     = OwnIdent.m_DDVID;
        NasIdent.C0        = OwnIdent.m_C0;
        NasIdent.CMULT     = OwnIdent.m_CMULT;
        NasIdent.DOMAIN_ID = OwnIdent.m_domainId;

        NasIdent.INDEP_POS = static_cast<I64> (countINDEP);

        NasIdent.INDEP_LEN = static_cast<I64> (lenINDEP);

        IDENTITYData.emplace_back (NasIdent);

        countINDEP += lenINDEP;
    }
}

void SEDLINKRepository::NastranToOwn (std::vector<NasMainStruct>&  IDENTITYData,
                                      std::vector<SubStructINDEP>& subDataINDEP,

                                      std::vector<MainStruct>& _OUT own)
{
    own.clear ();
    own.reserve (IDENTITYData.size ());

    // 代表初始的Index 位置,
    // 因为数据有可能是截取了附表的一部分，所有主表中根据POS找的时候需要对应一下，
    // 比如第一个主表数据中POS字段为10000， 附表的vector的数据
    // 就是从附表中的第10000个开始对应的 也就是Index==0的
    // const I64 index = IDENTITYData[0].POS;

    MainStruct const tempown;
    own.resize (IDENTITYData.size (), tempown);

    for (size_t i = 0; i < IDENTITYData.size (); i++)
    {
        auto& OwnIdent = own[i];
        auto& NasIdent = IDENTITYData[i];

        OwnIdent.m_id       = NasIdent.ID;
        OwnIdent.m_DSEID    = NasIdent.DSEID;
        OwnIdent.m_DDVID    = NasIdent.DDVID;
        OwnIdent.m_C0       = NasIdent.C0;
        OwnIdent.m_CMULT    = NasIdent.CMULT;
        OwnIdent.m_domainId = NasIdent.DOMAIN_ID;

        if (NasIdent.INDEP_LEN != 0)
        {
            OwnIdent.m_INDEPList.assign (subDataINDEP.begin () + NasIdent.INDEP_POS - IDENTITYData[0].INDEP_POS,
                                         subDataINDEP.begin () + NasIdent.INDEP_POS + NasIdent.INDEP_LEN - IDENTITYData[0].INDEP_POS);
        }
    }
}
